Finding the Fourth Proportional to 1,187,106.40, 1,638,289.97 and 670,907.98
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Solution
The fourth proportional to 1,187,106.40, 1,638,289.97 and 670,907.98 is: 925,900.00
Step by Step Solution
- Step 1: Write the proportion equation
1,187,106.40 : 1,638,289.97 = 670,907.98 : x - Step 2: Convert to fraction form
1,187,106.40/1,638,289.97 = 670,907.98/x - Step 3: Cross multiply
1,187,106.40x = 1,638,289.97 × 670,907.98 - Step 4: Simplify right side
1,187,106.40x = 1,099,141,815,636.19 - Step 5: Solve for x
x = 1,099,141,815,636.19/1,187,106.40 - Step 6: Final answer
x = 925,900.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.